API Key vs Automated Trading System (ATS)
Quick comparison to help you distinguish these two crypto terms.
API Key
intermediate
risk
An API key is a unique credential generated by an exchange that authenticates a trading bot's programmatic access, enabling it to fetch market data and place orders without requiring manual login.
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advanced
strategy
An Automated Trading System (ATS) is a complete, deployed implementation of algorithmic trading — integrating data feeds, signal generation, risk management, and live order execution into a single operational framework.
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